package com.seari.commonutils.common;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.DefaultHostnameVerifier;
import org.apache.http.conn.util.PublicSuffixMatcher;
import org.apache.http.conn.util.PublicSuffixMatcherLoader;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import org.apache.commons.codec.binary.Base64;
 
public class HttpClientUtil {
	private RequestConfig requestConfig = RequestConfig.custom()
		.setSocketTimeout(1500) //1.5秒后立即超时
		.setConnectTimeout(15000)
		.setConnectionRequestTimeout(15000)
		.build();
	
	private static HttpClientUtil instance = null;  
    private HttpClientUtil(){}  
    public static synchronized HttpClientUtil getInstance(){  
        if (instance == null) {  
            instance = new HttpClientUtil();  
        }  
        return instance;
    }  
      
    /** 
     * 发送 post请求 
     * @param httpUrl 地址 
     */  
    public String sendHttpPost(String httpUrl) {  
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost    
        return sendHttpPost(httpPost);  
    }  
      
    /** 
     * 发送 post请求 
     * @param httpUrl 地址 
     * @param params 参数(格式:key1=value1&key2=value2) 
     */  
    public String sendHttpPost(String httpUrl, String params) {  
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost    
        try {  
            //设置参数  
            StringEntity stringEntity = new StringEntity(params, "UTF-8");  
            stringEntity.setContentType("application/x-www-form-urlencoded");  
            httpPost.setEntity(stringEntity);  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        return sendHttpPost(httpPost);  
    }  
    
    //异步发送
    public void sendHttpPostAsync(String httpUrl, String params) {  
    	new Thread(new Runnable()
		{
			@Override
			public void run()
			{
				// TODO Auto-generated method stub
				HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost    
		        try {  
		            //设置参数  
		            StringEntity stringEntity = new StringEntity(params, "UTF-8");  
		            stringEntity.setContentType("application/x-www-form-urlencoded");  
		            httpPost.setEntity(stringEntity);  
		        } catch (Exception e) {  
		            e.printStackTrace();  
		        }  
		        CloseableHttpClient httpClient = null;  
		        CloseableHttpResponse response = null;   
		        try {  
		            // 创建默认的httpClient实例.  
		            httpClient = HttpClients.createDefault();  
		            httpPost.setConfig(requestConfig);  
		            // 执行请求  
		            httpClient.execute(httpPost);   
		        } catch (Exception e) {  
		           //e.printStackTrace();  
		        } finally {  
		            try {  
		                // 关闭连接,释放资源  
		                if (response != null) {  
		                    response.close();  
		                }  
		                if (httpClient != null) {  
		                    httpClient.close();  
		                }  
		            } catch (IOException e) {  
		                e.printStackTrace();  
		            }  
		        }  
			}
		}).start();
    	
    } 
    
  //异步发送
    public void sendHttpPostAsyncJson(String httpUrl, String params) {  
    	new Thread(new Runnable()
		{
			@Override
			public void run()
			{
				// TODO Auto-generated method stub
				HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost    
		        try {  
		            //设置参数  
		            StringEntity stringEntity = new StringEntity(params, "UTF-8");  
		            stringEntity.setContentType("application/json");  
		            httpPost.setEntity(stringEntity);  
		        } catch (Exception e) {  
		            e.printStackTrace();  
		        }  
		        CloseableHttpClient httpClient = null;  
		        CloseableHttpResponse response = null;   
		        try {  
		            // 创建默认的httpClient实例.  
		            httpClient = HttpClients.createDefault();  
		            httpPost.setConfig(requestConfig);  
		            // 执行请求  
		            httpClient.execute(httpPost);   
		        } catch (Exception e) {  
		           //e.printStackTrace();  
		        } finally {  
		            try {  
		                // 关闭连接,释放资源  
		                if (response != null) {  
		                    response.close();  
		                }  
		                if (httpClient != null) {  
		                    httpClient.close();  
		                }  
		            } catch (IOException e) {  
		                e.printStackTrace();  
		            }  
		        }  
			}
		}).start();
    	
    }  
      
    /** 
     * 发送 post请求 
     * @param httpUrl 地址 
     * @param maps 参数 
     */  
    public String sendHttpPost(String httpUrl, Map<String, String> maps) {  
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost    
        // 创建参数队列    
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); ;
        if(null != maps && maps.size() > 0)
        {
	        for (String key : maps.keySet()) {  
	            nameValuePairs.add(new BasicNameValuePair(key, maps.get(key)));  
	        }
        }  
        try {  
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
        return sendHttpPost(httpPost);  
    }  
      
      

      
    /** 
     * 发送Post请求 
     * @param httpPost 
     * @return 
     */  
    private String sendHttpPost(HttpPost httpPost) {  
        CloseableHttpClient httpClient = null;  
        CloseableHttpResponse response = null;  
        HttpEntity entity = null;  
        String responseContent = null;  
        try {  
            // 创建默认的httpClient实例.  
            httpClient = HttpClients.createDefault();  
            httpPost.setConfig(requestConfig);  
            // 执行请求  
            response = httpClient.execute(httpPost);  
            entity = response.getEntity();  
            responseContent = EntityUtils.toString(entity, "UTF-8");  
        } catch (Exception e) {  
            //e.printStackTrace();  
        } finally {  
            try {  
                // 关闭连接,释放资源  
                if (response != null) {  
                    response.close();  
                }  
                if (httpClient != null) {  
                    httpClient.close();  
                }  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
        return responseContent;  
    }  
  
    /** 
     * 发送 get请求 
     * @param httpUrl 
     */  
    public String sendHttpGet(String httpUrl) {  
        HttpGet httpGet = new HttpGet(httpUrl);// 创建get请求  
        return sendHttpGet(httpGet);  
    }  
      
    /** 
     * 发送 get请求Https 
     * @param httpUrl 
     */  
    public String sendHttpsGet(String httpUrl) {  
        HttpGet httpGet = new HttpGet(httpUrl);// 创建get请求  
        return sendHttpsGet(httpGet);  
    }  
      
    /** 
     * 发送Get请求 
     * @param httpPost 
     * @return 
     */  
    private String sendHttpGet(HttpGet httpGet) {  
        CloseableHttpClient httpClient = null;  
        CloseableHttpResponse response = null;  
        HttpEntity entity = null;  
        String responseContent = null;  
        try {  
            // 创建默认的httpClient实例.  
            httpClient = HttpClients.createDefault();  
            httpGet.setConfig(requestConfig);  
            // 执行请求  
            response = httpClient.execute(httpGet);  
            entity = response.getEntity();  
            responseContent = EntityUtils.toString(entity, "UTF-8");  
        } catch (Exception e) {  
            e.printStackTrace();  
        } finally {  
            try {  
                // 关闭连接,释放资源  
                if (response != null) {  
                    response.close();  
                }  
                if (httpClient != null) {  
                    httpClient.close();  
                }  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
        return responseContent;  
    }  
    
    /** 
     * 发送Get请求 获取图片 转换为BASE64编码
     * @param httpPost 
     * @return 
     */  
    @SuppressWarnings("restriction")
	public String sendHttpGetImageReturnBase64(String httpUrl) {  
    	HttpGet httpGet = new HttpGet(httpUrl);// 创建get请求  
    	CloseableHttpClient httpClient = null;  
        CloseableHttpResponse response = null;  
        HttpEntity entity = null;   
        String result = null;
        try {  
            // 创建默认的httpClient实例.  
            httpClient = HttpClients.createDefault();  
            httpGet.setConfig(requestConfig);  
            // 执行请求  
            response = httpClient.execute(httpGet);  
            entity = response.getEntity();  
            InputStream inStream = entity.getContent();
          //得到图片的二进制数据，以二进制封装得到数据，具有通用性
          ByteArrayOutputStream outStream = new ByteArrayOutputStream();
          //创建一个Buffer字符串
          byte[] buffer = new byte[1024];
          //每次读取的字符串长度，如果为-1，代表全部读取完毕
          int len = 0;
          //使用一个输入流从buffer里把数据读取出来
          while ((len = inStream.read(buffer)) != -1) {
          //用输出流往buffer里写入数据，中间参数代表从哪个位置开始读，len代表读取的长度
          outStream.write(buffer, 0, len);
          }
          //关闭输入流
          inStream.close();
          byte[] data = outStream.toByteArray();
          //对字节数组Base64编码
          result = Base64.encodeBase64String(data);
            //responseContent = EntityUtils.toString(entity, "UTF-8");  
        } catch (Exception e) {  
            e.printStackTrace();  
        } finally {  
            try {  
                // 关闭连接,释放资源  
                if (response != null) {  
                    response.close();  
                }  
                if (httpClient != null) {  
                    httpClient.close();  
                }  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
        return result;  
    }  
      
    /** 
     * 发送Get请求Https 
     * @param httpPost 
     * @return 
     */  
    private String sendHttpsGet(HttpGet httpGet) {  
        CloseableHttpClient httpClient = null;  
        CloseableHttpResponse response = null;  
        HttpEntity entity = null;  
        String responseContent = null;  
        try {  
            // 创建默认的httpClient实例.  
            PublicSuffixMatcher publicSuffixMatcher = PublicSuffixMatcherLoader.load(new URL(httpGet.getURI().toString()));  
            DefaultHostnameVerifier hostnameVerifier = new DefaultHostnameVerifier(publicSuffixMatcher);  
            httpClient = HttpClients.custom().setSSLHostnameVerifier(hostnameVerifier).build();  
            httpGet.setConfig(requestConfig);  
            // 执行请求  
            response = httpClient.execute(httpGet);  
            entity = response.getEntity();  
            responseContent = EntityUtils.toString(entity, "UTF-8");  
        } catch (Exception e) {  
            e.printStackTrace();  
        } finally {  
            try {  
                // 关闭连接,释放资源  
                if (response != null) {  
                    response.close();  
                }  
                if (httpClient != null) {  
                    httpClient.close();  
                }  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
        return responseContent;  
    }
}
